<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>async的函数阻塞</title>
</head>

<body>
  <script>
    function delayPromise (time) {
      return new Promise((res, rej) => {
        setTimeout(() => {
          res('success', time)
        }, time)
      })
    }
  </script>
</body>

</html>